96 | Chapter 2: Factory Method Pattern
var cProjectile:uint =
aProjectiles[Math.floor(Math.random( ) * aProjectiles.length)];
weapon.fire(cProjectile, this.stage, this.x, this.y + 15);
}
}
}
}
Example 2-35. HeroShip.as
package ships
{
import flash.display.;
import weapons.HeroWeapon;
import flash.events.;
internal class HeroShip extends Ship
{
private var weapon:HeroWeapon;
override internal function drawShip( ):void
{
graphics.beginFill(0x00FF00); // green color
graphics.drawRect(-5, -15, 10, 10);
graphics.drawRect(-12, -5, 24, 10);
graphics.drawRect(-20, 5, 40, 10);
graphics.endFill( );
}
override internal function initShip( ):void
{
// instantiate the hero projectile creator
weapon = new HeroWeapon( );
// attach the doMoveShip() and doFire( ) methods on this object
// as MOUSE_MOVE and MOUSE_DOWN handlers of the stage
this.stage.addEventListener(MouseEvent.MOUSE_MOVE, this.doMoveShip);
this.stage.addEventListener(MouseEvent.MOUSE_DOWN, this.doFire);
}
protected function doMoveShip(event:MouseEvent):void
{
// set the x coordinate of the sprite to the
// mouse relative to the stage
this.x = event.stageX;
event.updateAfterEvent( ); // process this event first
}
protected function doFire(event:MouseEvent):void
{
weapon.fire(HeroWeapon.CANNON, this.stage, this.x, this.y - 25);
event.updateAfterEvent( ); // process this event first
}
}
}
Example 2-34. AlienShip.as